39th Medical Operations Squadron changes command Published July 8, 2014 By Staff Sgt. Veronica Pierce 39th Air Base Wing Public Affairs INCIRLIK AIR BASE, Turkey -- Lt. Col. Artemus Armas took command of the 39th Medical Operations Squadron during a change of command ceremony June 24, here. Lt. Col. Julie Ostrand, outgoing commander, will continue her Air Force career at Maxwell Air Force Base, Ala. A Change of command ceremony is a tradition that represents a formal transfer of authority and responsibility from the outgoing commander to the incoming commander.